Text

Annual Radioactive Effluent Report and Radiological Environment Monitoring Report for 2010
	ML110670682
Person / Time
Site:	La Crosse File:Dairyland Power Cooperative icon.png
Issue date:	02/24/2011
From:	Berg W; Dairyland Power Cooperative
To:	; Document Control Desk, NRC/FSME
References
	LAC-14158
	Download: ML110670682 (53)
	v • d • e

WILLIAM L. BERG President and CEO DAIRYIAND POWER COOP E RAT IV E

February 24, 2011 In reply, please refer to LAC-14158 DOCKET NO. 50-409 Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555

SUBJECT:

Dairyland Power Cooperative La Crosse Boiling Water Reactor Possession-Only License No. DPR-45 Annual Radioactive Effluent Report and Radiological Environmental Monitoring Report

REFERENCES:

(1) NRC Letter, Keppler to Linder, dated August 12, 1983, Inspection Report 50-409/83-10 (DRMSP)

(2) LACBWR Technical Specifications 6.4.2, 6.5.1.1.c & d In accordance with 10 CFR 50.36a(a)(2), this letter serves to transmit to you the Radioactive Effluent Report and Radiological Environmental Monitoring Report for the La Crosse Boiling Water Reactor (LACBWR) for 2010.

This report is not complete due to missing data from LACBR's contractors. The 4th quarter 2010 is not available at this time nor have the results of the interlaboratory comparison program been received. Once the data is available correct pages to the report will be sent.

If you have any questions, please contact us.

Sincerely, DAIRYLAND POWER COOPERATIVE William L. Berg, Presid6t and CEO WLB:LLN:jkl Enclosures cc/encl: Peter Lee, Ph.D., NRC Reg. III, Decommissioning Branch Kristina Banovac, NRC Project Manager Don Hendrikse, Wisc. Div. of Health A Touchstone Energy Cooperative 3200 East Ave. S.

PO Box 817

La Crosse, WI 54602-0817

608-787-1258 ° 608-787-1469 fax ° www.dairynet.com

RADIOACTIVE EFFLUENT REPORT AND RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT FOR THE LA CROSSE BOILING WATER REACTOR (LACBWR)

(January 1 to December 31, 2010)

DAIRYLAND POWER COOPERATIVE 3200 EAST AVENUE SOUTH LA CROSSE WI 54602-0817

TABLE OF CONTENTS SECTION A: RADIOACTIVE EFFLUENT REPORT Section Title Page Intro d u ctio n...............................................................................

1 1.0 R egulatory Lim its...........................................................................

2 2.0 Effluent Release Concentration Limit............................................

4 3.0 A verage E nergy.............................................................................

4 4.0 A nalytical M ethods........................................................................

4 5.0 B atch R eleases.........................................................................

5 6.0 A bnorm al Releases.........................................................................

6 7.0 Estimated Total Analytical Error......................................................

6 8.0 Offsite Dose Calculation Summary and Conclusions.....................

12 9.0 Offsite Dose Calculation Manual (ODCM) Review.........................

13 10.0 Process Control Program (PCP) Review........................................

13 SECTION B: RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT Section Title Intro d u ctio n...............................................................................

1 1.0 Sam ple C ollection............................................................................

2 2.0 Results of the 2010 Radio-Environmental Monitoring Survey..........

2 3.0 C onclusions..............................................................................

4 4.0 Interlaboratory Comparison Program Results..................................

5 i

TABLE OF CONTENTS TABLES SECTION A: RADIOACTIVE EFFLUENT REPORT Table No.

Title Pa.

1A Effluent and Waste Disposal - Gaseous Effluents Sum m ation of All Releases............................................................

7 1B Effluent and Waste Disposal - Gaseous Effluents E levated R elease..........................................................................

8 2A Effluent and Waste Disposal - Liquid Effluents Sum m ation of A ll Releases............................................................

9 2B Effluent and Waste Disposal - Liquid Effluents..............................

10 3

Effluent and Waste Disposal Annual Report-2010 Solid Waste and Irradiated Fuel Shipm ents........................................................

11 SECTION B: RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT Table No.

Title Pac 5

Sample Frequency and Analysis of Radio Environmental Samples 10 6

Permanent Environmental Monitoring Station Locations................

11 7

Environm ental TLD Locations.........................................................

12 8

Radio-Environmental Samples Collected January-December 2010.

13 9

Quarterly Thermoluminescent Dosimeter Dose Measurements in the LA C BW R V icinity..................................................................

14 10 Weekly Gross Beta Air Particulates in the LACBWR Vicinity...........

15 11 Air Particulate Com posite Results..................................................

19 12 Results of Analysis of Mississippi River Water in the Vicinity of LA C B W R....................................................................................

2 5 13 Results of Analysis of Mississippi River Sediment in the Vicinity of LA C B W R....................................................................................

3 1 14 Fish Sample Activity in the Vicinity of LACBWR.............................

32 ii

TABLE OF CONTENTS FIGURES Title No.

FIGURE 1 FIGURE 2 FIGURE 3 FIGURE 4 LAC BW R Property M ap...........................................................

Permanent Environmental Monitoring Station Location...........

LACBWR Environmental Dose Assessment Locations...........

6 7

8 9

iii

SECTION A RADIOACTIVE EFFLUENT REPORT

INTRODUCTION:

The La Crosse Boiling Water Reactor (LACBWR), also known as Genoa Station No. 2, is located on the east bank of the Mississippi River near Genoa, Vernon County, Wisconsin. The plant was designed and constructed by the Allis-Chalmers Manufacturing Company. It was completed in 1967 and had a generation capacity of 50 MW (165 MW(th)). The reactor is owned by Dairyland Power Cooperative (DPC).

The reactor went critical in July 1967 and first contributed electricity to DPC's system in April 1968. After completing full power tests in August 1969, the plant operated between 60% and 100% full power, with the exception of plant shutdowns for maintenance and repair.

In April of 1987 plant operation was ceased. The reactor was defueled and placed in a SAFSTOR mode. In August of 1987 a possession-only license was received. In 2007 the reactor vessel was removed from the site and buried at the Bamwell waste repository.

In accordance with LACBWR Technical Specifications 6.5.1. 1.d and in compliance with 10 CFR 50.36a(a)(2), this document is the Radioactive Effluent Report for the period January I through December 31, 2010.

1

EFFLUENT AND WASTE DISPOSAL REPORT (Supplemental Information)

FACILITY: La Crosse Boilingq Water Reactor LICENSEE: Dairyland Power Cooperative DOCKET NO. 50-409 1.0 REGULATORY LIMITS

a.

Gaseous Effluent Release Limits:

LACBWR's stack effluent release limitations for gaseous effluent releases of radioactive material limits the release rate of the sum of the individual radionuclides, so that the dose rates to members of the public beyond the Effluent Release Boundary do not exceed 500 mRem/year to the whole body, 3000 mRem/year to the skin from noble gases, and 1500 mRem/year to a critical organ from H-3 and particulates with half-lives greater than 8 days as per the requirements of the Offsite Dose Calculation Manual (ODCM).

Also, in accordance with 10 CFR 50, Appendix I, the ODCM limitations for gaseous effluent radioactive material limit the air dose to a member of the public from noble gases in areas beyond the Effluent Release Boundary to less than 5 mRad gamma and 10 mRad beta per calendar quarter, and less than 10 mRad gamma and 20 mRad beta per calendar year. The dose limits from H-3 and particulates with half-lives greater than 8 days are less than 7.5 mRem per calendar quarter, and less than 15 mRem per calendar year to any organ.

Cumulative dose contributions from gaseous effluent releases are determined in accordance with the LACBWR Offsite Dose Calculations Manual.

2

EFFLUENT AND WASTE DISPOSAL REPORT - (cont'd)

b.

Liquid Effluent Release Limits:

LACBWR's liquid effluent release limitations for liquid effluent releases are those concentrations specified in 10 CFR 20 Appendix B, Table 2, Column 2. For alpha emitting radionuclides, the concentration is limited to a total activity concentration of 4.9E-9 pCi/ml, based upon an actual alpha emitting radionuclide analysis performed on a representative water sample. The values reported in tables 2A and 2B, Liquid Effluents, are based on dilution with the combination of LACBWR and Genoa Station No. 3 condenser cooling water flow prior to discharge to the Mississippi River. No credit is taken for further dilution in the mixing zone of the Mississippi River.

Also, in accordance with 10 CFR 50, Appendix I, the dose commitment to a member of the public from radioactive materials released in liquid effluents to areas beyond the Effluent Release Boundary are limited to less than 1.5 mRem whole body and 5.0 mRem organ dose per calendar quarter, and less than 3.0 mRem whole body and 10 mRem organ dose per calendar year via the critical ingestion pathway.

Cumulative quarterly and annual dose contributions from liquid effluent releases are determined for the adult fish ingestion pathway in accordance with the LACBWR Offsite Dose Calculation Manual.

c.

Solid Radioactive Waste All solid radioactive wastes are handled in accordance with a Process Control Program as defined by LACBWR procedures in order to assure that all applicable transportation and burial site disposal requirements are met.

3

EFFLUENT AND WASTE DISPOSAL REPORT - (cont'd) 2.0 EFFLUENT RELEASE CONCENTRATION LIMIT The Effluent Release Concentration used to calculate permissible release rates are obtained from 10 CFR 20, Appendix B, Table 2, Column 2.

3.0 AVERAGE ENERGY The release rate limits for LACBWR are not based on average energy.

4.0 ANALYTICAL METHODS

a.

Liquid Effluents Liquid effluent measurements for gross radioactivity are performed by HPGe gamma isotopic analysis of a representative sample from each tank discharged. In addition, each batch discharged tank is analyzed for alpha and tritium activity concentration. A composite sample is created by collecting representative aliquots from each tank batch discharged during a calendar quarter. This composite is analyzed for Iron-55 and Strontium-90 by a contractor on a quarterly basis.

b.

Airborne Particulates Airborne particulate releases are determined by HPGe gamma isotopic analysis.

This analysis is performed by analyzing a glass fiber filter paper taken from the stack monitor which continuously isokinetically samples and monitors the stack effluent. This filter is changed and analyzed on an approximate weekly basis and analyzed within 7 days after removal. This filter is also analyzed for alpha activity. A quarterly composite of these filters is sent to a contractor for Sr-90 analysis.

c.

Radioiodines Since the plant shutdown in April 1987, the 1-131/I-133 have decayed completely to stable elements. Amendment 66 to the LACBWR Technical Specifications, deleted 4

EFFLUENT AND WASTE DISPOSAL REPORT - (cont'd) the requirement for monitoring for iodine.

d.

Fission and Activation Gases The concentration of radioactivity (pCi/cc) in gaseous releases from the stack is continuously monitored by two in line stack monitors. These gas concentrations (pCi/cc) are corrected for pressure loss in the sampling system and averaged by the monitors microprocessor. The results are used along with the stack flow rate to obtain the daily gaseous release from the plant. Since the plant shutdown in April 1987, gaseous releases have been immeasurable. All fission gases except Kr-85 have decayed to stable elements.

e.

Tritium Tritium releases are determined by taking a grab sample of the stack atmosphere at the effluent of the stack monitor. Tritium, as tritiated water, is removed from the sample stream by condensation, using a cold trap. The condensed water vapor is then distilled and the distillate is analyzed for H-3 concentration (pCi/cc), by internal liquid scintillation spectrophotometry and the results are expressed in terms of tritium release rates. The tritium grab samples are obtained on at least a once/month basis.

5.0 BATCH RELEASES

a.

Airborne All airborne effluent releases at LACBWR are from a single Continuous-Elevated Release Point.

b.

Liquid All liquid effluent releases at LACBWR are batch releases. This is summarized as follows:

5

EFFLUENT AND WASTE DISPOSAL REPORT - (cont'd)

(1)

(2)

(3)

(4)

(5)

(6)

Number of Batch Releases:

Total Time Period for Batch Releases:

Maximum Time Period for a Batch Release:

Average Time Period for a Batch Release:

Minimum Time Period for a Batch Release:

Average Stream Flow Rate During Periods of Release of Effluent into a Flowing Stream:

21 453 hours0.00524 days 0.126 hours 7.490079e-4 weeks 1.723665e-4 months 28 hours 21.6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months 16.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months 76953 ft3/sec 6.0 ABNORMAL RELEASES There were no abnormal releases of radioactivity in plant effluents.

7.0 ESTIMATED TOTAL ANALYTICAL ERROR The reported analytical results contain the following estimated errors:

Counting Error 95% Confidence Level Sampling Volume Error +/- 5%.

6

EFFLUENT AND WASTE DISPOSAL REPORT - (cont'd)

TABLE 1A EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT 2010 GASEOUS EFFLUENTS - SUMMATION OF ALL RE/ EASES m

UNIT QTR QTR QTR QTR TOTAL A.

FISSION & ACTIVATION GASES

1.

TOTAL RELEASE Ci O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00

2.

AVERAGE RELEASE RATE FOR pCi/ Sec 0.00E+00 O.OOE+00 O.OOE+

0.0 OOE+00 PERIOD B.

IODINE 1-131 -

No longer analyzed for.

C.

PARTICULATES

1.

PARTICULATES WITH HALF-Ci 5.26E-07 2.70E-07 9.21E-07 1.28E-06 2.99E-06 LIVES> 8 DAYS

2.

AVERAGE RELEASE RATE FOR IiCi/ Sec 6.76E-08 3.43E-08 9.20E-08 1.60E-07 PERIOD

3.

GROSS ALPHA RADIOACTIVITY Ci 1.50E-07 2.40E-08 9.20E-08 5.90E-08 3.25E-07 D.

TRITIUM

1.

TOTAL RELEASE Ci 1.70E-03 2.47E-02 1.71E-02 9.35E-03 5.28E-02

2.

AVERAGE RELEASE RATE FOR p.Ci/ Sec 2.19E-04 3.14E-03 2.15E-03 1.18E-03 PERIOD E.

PERCENTAGE OF ODCM DOSE LIMITS FOR GASEOUS EFFLUENT RELEASES I QTR QTR QTR QTR YEARLY

1.

NOBLE GAS RELEASE GAMMA 0.OOE+00 0.OOE+00 0.O0E+00 0.OOE+00 0.OOE+00 BETA 0.00E+00 0.OOE+00 0.OOE+00 O.OOE+00 0.OOE+00

2.

H-3 AND ALL RADIONUCLIDES IN PARTICULATE FORM WITH HALF-LIVES GREATER THAN 8 DAYS GAMMA (Highest Organ) 1.58E-04 1.41E-04 1.14E-04 1.05E-04 1.89E-04 7

EFFLUENT AND WASTE DISPOSAL REPORT - (cont'd)

TABLE lB EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT 2010 GASEOUS EFFLUENTS - ELEVATED RELEASE I CONTINUOS MODE UNIT QTR QTR QTR QTR TOTAL NUCLIDES RELEASED

1.

FISSION GASES KRYPTON-85 Ci O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 TOTAL FOR PERIOD Ci O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00

2.

IODINE 1-131 - Analysis no longer required.

3.

PARTICULATES STRONTIUM-90 Ci 1.26E-07 O.OQE+00 2.45E-08 O.OOE+00 CESIUM-134 Ci O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 CESIUM-137 Ci 1.60E-07 1.30E-07 1.81E-07 1.17E-06 1.64E.06 COBALT-60 Ci 2.40E-07 1.40E-07 7.15E-07 1.05E-07 1.20E-06 Ci Ci Ci Ci TOTALS Ci 5.28E-07 2.70E-07 9.21E-07 1.28E-06 8

EFFLUENT AND WASTE DISPOSAL REPORT - (cont'd)

TABLE 2A EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT 2010 LIQUID EFFLUENTS - SUMMATION OF ALL RELEASES UNIT QTR QTR QTR QTR TOTAL A

FISSION & ACTIVATION PRODUCTS

1.

TOTAL RELEASE (NOT INCL.

Ci 1.25E-02 3.47E-02 1.06E-02 7.13E-03 6.49E-02 TRITIUM, GASES, ALPHA)

2.

AVERAGE DILUTED piCi/ ml 6.08E-09 1.24E-08 2.45E-09 2.17E-09 CONCENTRATION DURING PERIOD B.

TRITIUM

1.

TOTAL RELEASE Ci 5.16E-03 5.18E-03 6.28E-03 1.99E-03 1.86E-02 AVERAGE DILUTED piCi/ ml 2.51 E-09 1.85E-09 1.45E-09 6.06E-10 CONCENTRATION DURING PERIOD C.

DISSOLVED AND ENTRAINED GASES

1.

TOTAL RELEASE Ci O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00

2.

AVERAGE DILUTED

[.Ci/ ml O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 CONCENTRATION DURING PERIOD D.

GROSS ALPHA RADIOACTIVITY

1.

TOTAL RELEASE Ci 9.15E-06 1.27E-06 I2.16E-05 I9.60E-06 4.16E-05 E.

VOLUME OF WASTE Liters 8.75E+04 9.51 E+04 1.45E+05 1.65E+05 4.92E+05 RELEASED (PRIOR TO DILUTION)

F.

VOLUME OF DILUTION Liters 2.05E+09 2.80E+09 4.35E+09 3.29E+09 1.25E+10 WATER USED DURING PERIOD G.

PERCENTAGE OF ODCM LIMITS FOR LIQUID RELEASES QTR QTR QTR QTR YEARLY HIGHEST ORGAN 5.42 11.18 3.28 WHOLE BODY 11.45 23.48 6.81 9

EFFLUENT AND WASTE DISPOSAL REPORT - (cont'd)

TABLE 2B EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT 2010 LIQUID EFFLUENTS NUCLIDES RELEASED UNIT QTR QTR QTR QTR MANGANESE-54 Ci O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 IRON-55 Ci 6.66E-06 O.OOE+00 O.OOE+00 COBALT-60 Ci 2.84E-04 9.06E-05 6.02E-04 8.91 E-04 STRONTIUM-90 Ci 2.33E-04 1.62E-04 1.52E-04 CESIUM-134 Ci O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 CESIUM-137 Ci 1.20E-02 3.44E-02 9.87E-03 6.24E-03 TOTAL FOR PERIOD Ci 1.25E-02 3.47E-02 1.06E-02 (ABOVE)

KRYPTON-85 Ci O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 10

EFFLUENT AND WASTE DISPOSAL REPORT - (cont'd)

TABLE 3 EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT - 2010 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS A.

SOLID WASTE SHIPPED OFFSITE FOR DISPOSAL (Not Irradiated Fuel) 6-MONTH 6-MONTH

1. TYPE OF WASTE UNIT PERIOD PERIOD TOTAL

a. SPENT RESINS, FILTER SLUDGES, m 3 0

0 0

EVAPORATOR BOTTOMS, ETC Ci 0

0 0

b. DRY COMPRESSIBLE WASTE, m3 18.5 47.6 66.1 CONTAMINATED EQUIPMENT, ETC Ci 1.5E-03 3.4E-02 3.5E-02

c. IRRADIATED COMPONENTS, CONTROL m 3 0

0 0

RODS, ETC Ci 0

0 0

d. OTHER (DESCRIBE) m 3 0

0 0

Ci 0

0 0

6-MONTH 6-MONTH

2. ESTIMATE OF MAJOR NUCLIDE PERCENT PERIOD PERIOD COMPOSITION (BY TYPE OF WASTE)

OF TOTAL CURIES CURIES Co-60 9.7/40.5 1.5E-04 1.4E-02 Fe-55 NA/5 1.8E-03 Ni-63 85.8/50.8 1.3E-03 1.8E-02 Pu-241 2.9/2.5 4.4E-05 8.8E-04

3.

SOLID WASTE DISPOSITION MODE OF NO. OF SHIPMENTS TRANSPORTATION DESTINATION 2

Sole Use OAK RIDGE, TN 1

Sole Use CLIVE, WT B.

IRRADIATED FUEL SHIPMENTS (DISPOSITION)

NO OF SHIPMENTS NONE MODE OF TRANSPORTATION DESTINATION 11

EFFLUENT AND WASTE DISPOSAL REPORT - (cont'd)

8. 0 OFFSITE DOSE CALCULATIONS

SUMMARY

AND CONCLUSIONS:

a.

Gaseous Effluent Releases The maximum quarterly offsite gamma dose due to noble gases was 0.00 mRad.

The cumulative 2010 annual offsite gamma dose due to noble gases was 0.00 mRad.

The maximum quarterly offsite beta dose due to noble gases was 0.00 mRad.

The cumulative 2010 annual offsite beta dose due to noble gases was 0.00 mRad.

The maximum quarterly offsite dose to any organ from the release of H-3 and all radionuclides in particulate form with half-lives greater than 8 days was approximately 1.31E-5 mRem. The cumulative 2010 annual maximum organ dose from these radionuclides was also approximately 2.19E-5 mRem.

The highest historical annual average X/Q equal to 1.82 E-6 sec/m3 for the period 1985-1987 for the worst case offsite receptor location, in accordance with the ODCM, was used to calculate these offsite dose values.

b.

Liquid Effluent Releases The maximum quarterly organ dose from liquid releases was approximately 0.222 mRem. The cumulative 2010 annual organ dose was approximately 0.577 mRem. The maximum quarterly total body dose for liquid releases was approximately 0.141 mRem, and the cumulative 2010 annual total body dose was approximately 0.366 mRem.

c.

Conclusion All calculated offsite doses were below ODCM limits.

12

EFFLUENT AND WASTE DISPOSAL REPORT - (cont'd)

9. 0 OFFSITE DOSE CALCULATION MANUAL (ODCM) REVIEW The ODCM was reviewed in 2010 - no changes were made to the ODCM.

10.0 PROCESS CONTROL PROGRAM (PCP) REVIEW The PCP was not reviewed in 2010.

13

SECTION B ANNUAL RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

INTRODUCTION:

The Radiological Environmental Monitoring (REM) Program is conducted to comply with the requirements of the ODCM and in accordance with 10 CFR 50 Appendix I. The REM Program provides measurements of radiation and of radioactive materials in those exposure pathways and for those radionuclides which could potentially lead to radiation doses to Members of the Public resulting from plant effluents. Environmental samples are taken within the surrounding areas of the plant and in selected control or background locations.

The monitoring program at the LACBWR facility includes monitoring of liquid and gaseous releases from the plant, as well as environmental samples of surface air, river water, river sediment, milk, fish, and penetrating radiation.

The REM program theory supplements the Radioactive Effluent analyses by verifying that the measurable concentrations of radioactive materials and levels of radiation are not higher than expected on the basis of the effluent measurements and modeling of the environmental exposure pathways using the methodology of the Offsite Dose Calculation Manual (ODCM).

An Interlaboratory Comparison Program is provided to ensure that independent checks on the precision and accuracy of the measurements of radioactive material in environmental samples are performed.

1

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT 1.0 SAMPLE COLLECTION Environmental samples are collected from the area surrounding LACBWR at the frequencies outlined in the ODCM. A series of figures and tables are included in this report to better show LACBWR's environmental program.

FIGURE 1 This map includes the plant boundary, roads, other generation plants, and the relationship of the plant to the nearest local community.

FIGURE 2 This map shows the location of LACBWR's permanent environmental monitoring stations.

FIGURES 3&4 These maps show the location of LACBWR's TLDs.

TABLE 5 This table shows the sampling frequency of the various environmental samples and the analyses performed on these samples TABLE 6 This table shows the permanent monitoring stations used in LACBWR's environmental program.

TABLE 7 This table shows the TLD locations.

TABLE 8 This table shows the number of various samples collected and analyzed during 2010.

2.0 RESULTS OF THE 2010 RADIO-ENVIRONMENTAL MONITORING SURVEYS During 2010, activity levels in the local environment were normal, indicating no significant plant attributed radioactivity.

2.1 PENETRATING RADIATION The environmental penetrating radiation dose is measured by thermo luminescent dosimeters consisting of four lithium fluoride (LiF) chips. These TLD's are changed on a quarterly basis and are sent to an outside contractor for reading. The TLD results for 2010 are shown on Table 9.

2

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT - (cont'd) 2.2 AIR PARTICULATE Air samples are collected continuously from various sites (see Table 6) around LACBWR. An air sampler is also located 18 miles north of the plant in La Crosse, Wisconsin, to act as a control station.

Particulate air samples are collected at the rate of approximately 30-60 Ipm with a Gelman Air Sampler. The air filter consists of a glass fiber filter with an associated pore size of approximately 0.45 pm. The particulate filters are analyzed weekly for gross beta activity with an internal proportional counter, and the monthly particulate composites are gamma analyzed for individual isotopic concentration.

TABLE 10 This table shows the weekly gross beta gamma activity concentration from the air particulate filters.

TABLE 11 This table shows the composite air particulate isotopic analysis.

Comparison between the control station at La Crosse and the other stations near LACBWR indicate that there was no significant plant attributable airborne particulate activity.

2.3 RIVER WATER River water is collected monthly. River water samples above at, and below the plant site are collected and are gamma analyzed for isotopic concentration. The river water gamma isotopic analysis results are shown in Table 12. The results indicate that there were no significant plant attributable radionuclides in the river water.

3

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT - (cont'd) 2.4 SEDIMENT SAMPLES Sediment samples were collected twice per year above, at, and below the plant outfall. These samples were gamma analyzed and these results appear on Table 13. They indicated that small amounts of plant-attributed radionuclides have accumulated in river sediments near the outfall. The amount of radionuclide in this sediment declined significantly after plant shutdown. These amounts have remained relatively constant the last few years.

2.5 FISH Fish samples were collected quarterly above and below the plant discharge. The results of gamma spectral analysis of edible portions of fish samples appear in Table 14. There has been no significant accumulation of plant-attributed radionuclides in fish in the vicinity of LACBWR.

3.0 CONCLUSION

S All environmental samples collected and analyzed during 2010 exhibited no significant contribution from LACBWR.

4

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT - (cont'd) 4.0 INTERLABORATORY COMPARISON PROGRAM RESULTS During 2010, interlaboratory comparison samples were obtained from an outside contractor. The equipment used to analyze the environmental samples was tested against the contractors' results. The following is the result of this comparison.

LACBWR CONTRACTOR RESULTS RESULTS GROSS BETA GROSS ALPHA Ce-141 Cr-51 Cs-1 34 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 H-3 5

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT - (cont'd)

'LUSIOM BOUNDA.I 1109 ft radiu!

1000 500 0

1O00 SCALE OF FEET T.- OI0i--N., -R. W.

OF THE 5th PM.-

JEFFERSON TOWNSHIP HOUSTON

COUNTY,

/

MINNESOTA I

0TE' ISLAND 126 IS UNDER THE JURISDICTION OF UPPER MISSISSIPPI RIVER WILD LIFE AND FISH REFUGE.

f k-/

INDICATES MILES ABOVE THI MOUTH OF THE OHIO RIVER.

t.

FIGURE 1 - LACBWR PROPERTY MAP 6

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT - (cont'd)

FIGURE 2 - PERMANENT ENVIRONMENTAL MONITORING STATION LOCATIONS (Refer to Table 6) 7

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT - (cont'd)

FIGURE 3 - LACBWR ENVIRONMENTAL DOSE ASSESSMENT LOCATIONS 8

0-0 0

0 mz Ka 0z mz

-- I 0

z 0

0 0

CC)

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT - (cont'd)

TABLE 5 SAMPLE FREQUENCY AND ANALYSIS OF RADIO-ENVIRONMENTAL SAMPLES SAMPLE FREQUENCY ANALYSIS PERFORMED TLD (LiF) Dosimeters Quarterly Dose in mRem Particulate Air Glass Weekly Gross Beta and Gamma Fiber Filters Spectroscopy of Composites Monthly (HPGe-MCA)

Milk Obtain sample as directed if Gamma Spectroscopy abnormal stack particulate release occurs.

Sediment Twice per year Gamma Spectroscopy Fish Quarterly Gamma Spectroscopy River Monthly Gamma isotopic analysis and tritium (Liquid Scintillation Analyzer)

Vegetation Obtain sample as directed if Gamma Spectroscopy abnormal stack particulate release occurs.

10

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT - (cont'd)

TABLE 6 PERMANENT ENVIRONMENTAL MONITORING STATION LOCATIONS (Refer to Figure 2)

LOCATION AIR NO.

LOCATION SAMPLE 1

Radio Tower x

2 Dam No. 8 x

3 Trailer Court x

4 Crib House x

5 Main Office x

11

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT - (cont'd)

TABLE 7 ENVIRONMENTAL TLD LOCATIONS LOCATION NO.

LOCATION 1

LA CROSSE MAIN OFFICE AIR SAMPLER BOX 2

DAM #8 AIR SAMPLER BOX 3

RADIO TOWER BUILDING AT AIR SAMPLER 4

TRAILER COURT AIR SAMPLER BOX 5

CRIBHOUSE AIR SAMPLER BOX 6

G-3 CONTROL ROOM 7

SW GATEPOST AT END OF G-3 DIKE 8

ON FENCE N. SIDE OF FISHERMAN'S ROAD 9

SITE ENTRANCE GUARD AREA 10 ON FENCE AT NE CORNER OF THE SWITCHYARD 11 ON N. SITE AREA FENCE GATE 12 G-1 CRIBHOUSE 13 ON MOORING WALKWAY WEST OF LACBWR #2 WAREHOUSE 14 G-3 COAL UNLOADING CRANE 15 POWER POLE ON BLUFF SIDE EAST OF PLANT 16 RESTRICTED AREA FENCE N. SIDE 17 RESTRICTED AREA FENCE E. SIDE 18 RESTRICTED AREA FENCE S. SIDE 19 RESTRICTED AREA FENCE SW CORNER 20 RESTRICTED AREA FENCE W. SIDE 21 RESTRICTED AREA FENCE NW CORNER 12

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT - (cont'd)

TABLE 8 RADIO-ENVIRONMENTAL SAMPLES COLLECTED JANUARY-DECEMBER 2010 TYPE OF SAMPLE NUMBER OF TYPE

__OFSAMPLE_

SAMPLES Penetrating Radiation (TLD's) 83 Air Particulate 252 River Water 36 Sediment 6

Fish 8

13

RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT - (cont'd)

TABLE 9 QUARTERLY THERMOLUMINESCENT DOSIMETER DOSE MEASUREMENTS IN THE LACBWR VICINITY JANUARY - DECEMBER 2010 BACKGROUND CORRECTED STATION 1st QUARTER 2nd QUARTER 3rd QUARTER 4th QUARTER NO.

mRem mRem mRem mRem 1

0 0

2 0

0 0

0 3

0 0

4 0

0.5 0.9 2.7 5

0.6 0

0.1 0.7 6

0 0

7 0

0 0

0 8

0 0

9 0

0 0

1.3 10 0

0 0

0 11 0

0.8 0

0 12 1.1 2.6 2.3 2.3 13 0

0 0

0 14 0

0 0

0 15 1.9 3.4 MISSING 3.4 16 8.4 9.4 12.4 9.6 17 12.8 9.2 12.9 15.3 18 22.3 19.9 24.8 13.0 19 11.1 13.2 12.5 9.8 20 3.3 2.2 2.7 1.1 21 6.1 2.5 69.4 35.6 Station #1 (La Crosse Main Office) located approximately 16 miles north of LACBWR is considered the Control TLD.

14

TABLE 10 WEEKLY GROSS BETA AIR PARTICULATES IN THE LACBWR VICINITY (Reporting Level = 10 times Control Value)

COLLECTION LACBWR PLANT TRAILER COURT DAM #8 RADIO TOWER LA CROSSE DATE pCi/mr3 pC3/m3 pCi/m3 CONTROL 01-06-10

.027 +.003

.012 +.003

<.002

.022 +.002

.019 +.002 01-20-10

.032+.003

.040+.004

.005+.002

.026-+.002

.024+.002 01-27-10

.016+.002

.008+.002

.006+.002

.013-+.002

.014+.002 02-03-10

.025 +.002

.015 +.003

.004 +.001

.016 +.002

.020 +.002 02-10-10

.028 +.003

.026 +.003

.008 +.002

.021 +.002

.030 +.003 02-17-10

.009+.001

.024+.003

.006+.002

.004+.001

.013+.002 02-24-10

.028 +.002

.022 +.003

.004 +.001

.022 +.002

.026+.002 03-03-10

.021 +.002

.010 +.002

<.001

.016 +.002

.023 +.002 03-10-10

.022+.002

.025+.003

.012+.002

.026+.002

.02 8+.003 03-17-10

.014 +.002

.015 +.002

.008 +.002

.016 +.002

.014 +.002 03-24-10

.019+.002

.016+.002

.016+.003

.015+.002

.018+.002 03-31-10

.019+.002

.019+.003

.022+.002

.020+.002 04-07-10

.017 +.002

.022 +.003

.010 +.002

.013 +.002

.012 +.002 04-14-10

.021 +.002

.016 +.002

.021 +.002

.019 +.002 15

TABLE 10 WEEKLY GROSS BETA AIR PARTICULATES IN THE LACBWR VICINITY (Reporting Level = 10 times Control Value)

COLLECTION LACBWR PLANT TRAILER COURT DAM #8 RADIO TOWER LA CROSSE DATE pCi/m 3 PCi/m3 pCi/m3 pCi/m3 CONTROL 04-21-10

.014 +.002

.018 +.002

.017 +.003

.019 +.002

.019 +.002 04-28-10

.020+.002

.021 +.002

.014+.002

.022 +.002

.021+.002 05-05-10

.016+.002

.015+.002

.014+.002

.015+.002

.017+.002 05-12-10

.011 +.002

.010 +.002

.013 +.002

.011 +.002 05-19-10

.017+.002

.013+.002

.009+.002

.015+.002

.015+.002 05-26-10

.013+.002

.017+.002

.018+.003

.017+.002

.020+.002 06-02-10

.016+.002

.015+.002

.013+.002

.015+.002 06-09-10

.012+.002

.008+.002

.015+.002

.013+.002 06-16-10

.010 +.002

.015 +.002

.012+.002 No Sample

.009 +.001 06-23-10

.028 +.019

.011 +.002

.005+.002 No Sample

.006 +.001 06-30-10

.015 +.002

.013 +.002

.013+.002

.019+.002

.017 +.002 07-07-10

.011 +.002

.012 +.002

.010 +.002

.014 +.002

.013 +.002 07-14-10

.017 +.002

.016 +.002

.019 +.002

.020 +.002 07-21-10

.019+.002

.020+.002

.015+.002

.021 +.002

.019+.002 16

TABLE 10 WEEKLY GROSS BETA AIR PARTICULATES IN THE LACBWR VICINITY (Reporting Level = 10 times Control Value)

COLLECTION LACBWR PLANT TRAILER COURT DAM #8 RADIO TOWER LA CROSSE DATE pCi/m 3 pCi/m3 pCi/m3 pCi/m_

CONTROL 07-28-10

.014 +.002

.010 +.002

.017 +.003

.018 +.002

.017 +.002 08-04-10

.027+.002

.023+.002

.022+.003

.026+.002

.026+.002 08-11-10

.015+.002

.024+.003

.012+.002

.022+.002

.023+.002 08-17-10

.019+.002

.022+.003

.017+.003

.022+.002

.018+.002 08-25-10

.025+.002

.025+.003

.044+.004

.014+.002

.027+.002 09-01-10

.017+.002

.020+.002

.015+.002

.021+.002

.020+.002 09-08-10

.016+.002

.017 +.002

.014 +.002

.016+.002

.016 +.002 09-15-10

.016+.002

.014+.002

.013 +.002

.012 +.002

.015 +.002 09-22-10

.016 +.002

.021 +.002

.017+.002

.017 +.002

.018 +.002 09-29-10

.013+.002

.017+.002

.016+.002

.017+.002

.017+.002 10-05-10

.013+.002

.014 +.002

.017+.002

.015+.002 10-12-10

.044+.003

.029+.003

.032+.003

.032+.002 10-20-10

.021 +.002

.027 +.002

.043 +.004

.021 +.002

.019 +.002 10-27-10

.022 +.002

.023 +.002

.022 +.002

.025 +.002

.022 +.002 17

TABLE 10 WEEKLY GROSS BETA AIR PARTICULATES IN THE LACBWR VICINITY (Reporting Level = 10 times Control Value)

COLLECTION LACBWR PLANT TRAILER COURT DAM #8 RADIO TOWER LA CROSSE DATE pCi/mr pCi/m3 pCi/mn pCi/m3 CONTROL 11-03-10

.017+.002

.014+.002

.016+.002

.015+.002 11-10-10

.020+.002

.019 +.002

.018 +.002

.021 +.002 11-16-10

.022+.002

.021 +.002

.025+.003

.021 +.002 11-23-10

.021 +.002

.023+.002

.024+.003

.022+.002 12-01-10

.025 +.002

.026 +.002

.021 +.002

.022 +.002

.022 +.002 12-08-10

.021 +.002

.011 +.002

.020+.002

.022+.002 12-15-10

.038+.003

.032+.003

.014+.002

.033+.003

.030+.003 12-22-10

.032 +.002

.030 +.002

.016 +.002

.031 +.003

.025 +.003 12-29-10

.013 +.002

.008 +.002

.015 +.002 No Sample 18

TABLE 11 AIR PARTICULATE COMPOSITE RESULTS (Concentrations in pCi/m 3)

LOCATION RADIO TOWER LACBWR TRAILER COURT DAM NO. 8 LA CROSSE START DATE 12-30-09 12-30-09 12-30-09 12-30-09 12-30-09 END DATE 1-27-10 1-27-10 1-27-10 1-27-10 1-27-10 ISOTOPES/RL*

Cs-1 34/10

<2.77E-3

<2.85E-3

<4.49E-3

<3.80E-3

<3.02E-3 Cs-1 37/20

<2.85E-3

<2.88E-3

<4.78E-3

<4.05E-3

<3.07E-3

RL = REPORTING LEVEL LOCATION RADIO TOWER LACBWR TRAILER COURT DAM NO. 8 LA CROSSE START DATE 1-27-10 1-27-10 1-27-10 1-27-10 1-27-10 END DATE 2-24-10 2-24-10 2-24-10 2-24-10 2-24-10 ISOTOPES/RL*

Cs-134/10

<2.60E-3

<2.95E-3

<4.63E-3

<3.67E-3

<3.13E-3 Cs-137/20

<2.77E-3

<2.92E-3

<4.65E-3

<3.80E-3

<3.15E-3

RL = REPORTING LEVEL 19

TABLE 11 AIR PARTICULATE COMPOSITE RESULTS (Concentrations in pCi/m 3)

LOCATION RADIO TOWER LACBWR TRAILER COURT DAM NO. 8 LA CROSSE START DATE 2-24-10 2-24-10 2-24-10 2-24-10 2-24-10 END DATE 3-31-10 3-31-10 3-31-10 3-31-10 3-31-10 ISOTOPES/RL*

Cs-134/10

<2.03E-3

<2.21 E-3

<2.83E-3

<3.25E-3

<2.11 E-3 Cs-137/20

<2.14E-3

<2.18E-3

<2.94E-3

<3.25E-3

<2.17E-3

RL = REPORTING LEVEL LOCATION RADIO TOWER LACBWR TRAILER COURT DAM NO. 8 LA CROSSE START DATE 3-31-10 3-31-10 3-31-10 3-31-10 3-31-10 END DATE 4-28-10 4-28-10 4-28-10 4-28-10 4-28-10 ISOTOPES/RL*

Cs-134/10

<2.56E-3

<2.63E-3

<3.34E-3

<4.01 E-3

<2.57E-3 Cs-137/20

<2.28E-3

<2.70E-3

<3.02E-3

<3.66E-3

<1.93E-3

RL = REPORTING LEVEL 20

TABLE 11 AIR PARTICULATE COMPOSITE RESULTS (Concentrations in pCi/m 3)

LOCATION RADIO TOWER LACBWR TRAILER COURT DAM NO. 8 LA CROSSE START DATE 4-28-10 4-28-10 4-28-10 4-28-10 4-28-10 END DATE 6-02-10 6-02-10 6-02-10 6-02-10 6-02-10 ISOTOPES/RL*

Cs-134/10

<1.95E-3

<2.04E-3

<2.68E-3

<1.92E-3

<1.94E-3 Cs-137/20

<1.98E-3

<2.01 E-3

<2.63E-3

<1.95E-3

<2.OOE-3

RL = REPORTING LEVEL LOCATION RADIO TOWER LACBWR TRAILER COURT DAM NO. 8 LA CROSSE START DATE 6-02-10 6-02-10 6-02-10 6-02-10 6-02-10 END DATE 6-30-10 6-30-10 6-30-10 6-30-10 6-30-10 ISOTOPES/RL*

Cs-134/10

<5.28E-3

<3.31 E-3

<3.29E-3

<3.67E-3

<2.39E-3 Cs-137/20

<5.09E-3

<3.47E-3 3.05E-3+1.19E-3 3.35E-3+1.37E-3

<2.45E-3

RL = REPORTING LEVEL 21

TABLE 11 AIR PARTICULATE COMPOSITE RESULTS (Concentrations in pCi/m 3)

LOCATION RADIO TOWER LACBWR TRAILER COURT DAM NO. 8 LA CROSSE START DATE 6-30-10 6-30-10 6-30-10 6-30-10 6-30-10 END DATE 7-28-10 7-28-10 7-28-10 7-28-10 7-28-10 ISOTOPES/RL*

Cs-134/10

<2.43E-3

<3.30E-3

<3.89E-3

<2.29E-3 Cs-137/20

<2.46E-3

<2.52E-3

<3.43E-3

<4.03E-3

<2.32E-3

RL = REPORTING LEVEL LOCATION RADIO TOWER LACBWR TRAILER COURT DAM NO. 8 LA CROSSE START DATE 7-28-10 7-28-10 7-28-10 7-28-10 7-28-10 END DATE 9-01-10 9-01-10 9-01-10 9-01-10 9-01-10 ISOTOPES/RL*

Cs-134/10

<1.95E-3

<2.03E-3

<2.68E-3

<3.05E-3

<1.86E-3 Cs-137/20

<2.11 E-3

<2.01 E-3

<2.65E-3

<3.29E-3

<2.00E-3

RL = REPORTING LEVEL 22

TABLE 11 AIR PARTICULATE COMPOSITE RESULTS (Concentrations in pCi/m 3)

LOCATION RADIO TOWER LACBWR TRAILER COURT DAM NO. 8 LA CROSSE START DATE 9-01-10 9-01-10 9-01-10 9-01-10 9-01-10 END DATE 9-29-10 9-29-10 9-29-10 9-29-10 9-29-10 ISOTOPES/RL*

Cs-134/10

<2.80E-3

<2.75E-3

<3.41 E-3

<3.77E-3

<2.42E-3 Cs-137/20

<2.44E-3

<2.94E-3

<3.58E-3

<3.98E-3

<2.58E-3

RL = REPORTING LEVEL LOCATION RADIO TOWER LACBWR TRAILER COURT DAM NO. 8 LA CROSSE START DATE 9-29-10 9-29-10 9-29-10 9-29-10 9-29-10 END DATE 10-27-10 10-27-10 10-27-10 10-27-10 10-27-10 ISOTOPES/RL*

Cs-134/10

<3.42E-3

<2.56E-3

<2.80E-3

<3.30E-3

<2.21 E-3 Cs-1 37/20

<3.67E-3

<2.62E-3

<2.89E-3

<3.55E-3

<2.29E-3

RL = REPORTING LEVEL 23

TABLE 11 AIR PARTICULATE COMPOSITE RESULTS (Concentrations in pCi/m 3)

LOCATION RADIO TOWER LACBWR TRAILER COURT DAM NO. 8 LA CROSSE START DATE 10-27-10 10-27-10 10-27-10 10-27-10 10-27-10 END DATE 12-03-10 12-03-10 12-03-10 12-03-10 12-03-10 ISOTOPES/RL*

Cs-134/10

<2.37E-3

<1.89E-3

<1.94E-3

<2.14E-3

<2.24E-3 Cs-1 37/20

<2.43E-3

<1.98E-3

<2.02E-3

<2.19E-3

<2.27E-3

RL = REPORTING LEVEL LOCATION RADIO TOWER LACBWR TRAILER COURT DAM NO. 8 LA CROSSE START DATE 12-03-10 12-03-10 12-03-10 12-03-10 12-03-10 END DATE 12-29-10 12-29-10 12-29-10 12-29-10 12-29-10 ISOTOPES/RL*

Cs-134/10

<3.15E-3

<2.48E-3

<2.59E-3

<2.93E-3

<4.19E-3 Cs-137/20

<3.29E-3

<2.54E-3

<2.68E-3

<3.OOE-3

<4.37E-3 Co-60 2.28E-3+7.49E-4 2.42E-3+5.92E-4

RL = REPORTING LEVEL 24

TABLE 12 RESULTS OF ANALYSIS OF MISSISSIPPI RIVER WATER IN THE VICINITY OF LACBWR (Report Concentrations in pCi/Liter)

SAMPLE #1 SAMPLE #2 SAMPLE #3 SAMPLE #1 SAMPLE #2 SAMPLE #3 COLLECTION DATE:

1-12-10 1-12-10 1-12-10 2-09-10 2-09-10 2-09-10 SAMPLE LOCATION:

DAM 8 OUTFALL VICTORY DAM 8 OUTFALL VICTORY ISOTOPES/RL

H-3

<156

<156 214+134 366+136 354+136 Mn-54/1000

<4.12

<4.02

<4.05

<3.85

<4.06

<4.01 Co-60/300

<4.33

<4.42

<4.27

<4.38

<4.48

<4.22 Zn-65/300

<9.28

<9.18

<9.52

<9.70

<8.97

<9.60 Cs-134/30

<4.59

<4.66

<4.63

<4.77

<4.65 Cs-1 37/50

<4.75

<4.80

<4.69

<4.59

<4.74

<4.62

RL = REPORTING LEVEL 25

TABLE 12 RESULTS OF ANALYSIS OF MISSISSIPPI RIVER WATER IN THE VICINITY OF LACBWR (Report Concentrations in pCi/Liter)

SAMPLE #1 SAMPLE #2 SAMPLE #3 SAMPLE #1 SAMPLE #2 SAMPLE #3 COLLECTION DATE:

3-09-10 3-09-10 3-09-10 4-12-10 4-12-10 4-12-10 SAMPLE LOCATION:

DAM 8 OUTFALL VICTORY DAM 8 OUTFALL VICTORY ISOTOPES/RL

H-3 194 +/- 137 412+140

<145 275+133 208+132 145+131 Mn-54/1000

<4.05

<4.23

<4.08

<4.02

<3.90

<3.89 Co-60/300

<4.41

<3.99

<4.18

<4.12

<4.37

<4.59 Zn-65/300

<10.0

<8.96

<9.32

<9.29

<9.39

<9.61 Cs-134/30

<4.70

<4.74

<4.53

<4.57

<4.48 Cs-137/50

<4.73

<3.60

<4.70

<4.77

<3.56

<4.83

RL = REPORTING LEVEL 26

TABLE 12 RESULTS OF ANALYSIS OF MISSISSIPPI RIVER WATER IN THE VICINITY OF LACBWR (Report Concentrations in pCi/Liter)

SAMPLE #1 SAMPLE #2 SAMPLE #3 SAMPLE #1 SAMPLE #2 SAMPLE #3 COLLECTION DATE:

5-10-10 5-10-10 5-10-10 6-14-10 6-14-10 6-14-10 SAMPLE LOCATION:

DAM 8 OUTFALL VICTORY DAM 8 OUTFALL VICTORY ISOTOPES/RL

H-3

<141

<154

<154 Mn-54/1000

<3.89

<4.05

<4.10

<4.14

<3.87

<3.93 Co-60/300

<4.23

<4.41

<4.35

<4.44

<4.36

<4.39 Zn-65/300

<9.53

<9.39

<9.12

<9.39

<9.50 Cs-134/30

<4.62

<4.51

<4.49

<4.40

<4.68

<4.63 Cs-137/50

<4.75

<4.76

<3.52

<4.65

<4.61

<4.70

RL = REPORTING LEVEL 27

TABLE 12 RESULTS OF ANALYSIS OF MISSISSIPPI RIVER WATER IN THE VICINITY OF LACBWR (Report Concentrations in pCi/Liter)

SAMPLE #1 SAMPLE #2 SAMPLE #3 SAMPLE #1 SAMPLE #2 SAMPLE #3 COLLECTION DATE:

7-13-10 7-13-10 7-13-10 8-10-10 8-10-10 8-10-10 SAMPLE LOCATION:

DAM 8 OUTFALL VICTORY DAM 8 OUTFALL VICTORY ISOTOPES/RL

H-3

<138

<147

<147 Mn-54/1000

<3.95

<4.11

<3.87

<3.93

<4.20

<4.0 Co-60/300

<4.22

<4.26

<4.23

<4.29

<4.34

<4.22 Zn-65/300

<9.54

<9.18

<9.43

<9.14

<9.38

<9.37 Cs-1 34/30

<4.61

<4.49

<4.61

<4.50

<4.43

<4.55 Cs-1 37/50

<4.72

<4.62

<4.75

<4.69

<4.75

<4.72

RL = REPORTING LEVEL 28

TABLE 12 RESULTS OF ANALYSIS OF MISSISSIPPI RIVER WATER IN THE VICINITY OF LACBWR (Report Concentrations in pCi/Liter)

SAMPLE #1 SAMPLE #2 SAMPLE #3 SAMPLE #1 SAMPLE #2 SAMPLE #3 COLLECTION DATE:

9-14-10 9-14-10 9-14-10 10-11-10 10-11-10 10-11-10 SAMPLE LOCATION:

DAM 8 OUTFALL VICTORY DAM 8 OUTFALL VICTORY ISOTOPES/RL

H-3

<153

<148

<148 Mn-54/1000

<4.07

<3.99

<3.83

<4.03

<4.25

<3.97 Co-60/300

<4.16

<4.11

<4.22

<4.02

<4.32

<4.40 Zn-65/300

<9.43

<9.29

<9.34

<9.20

<8.96

<9.26 Cs-134/30

<4.63

<4.68

<4.55

<4.61

<4.70

<4.61 Cs-137/50

<4.84

<4.62

<4.59

<4.53

<4.66

+

i i

+

i 4

+

RL = REPORTING LEVEL 29

TABLE 12 RESULTS OF ANALYSIS OF MISSISSIPPI RIVER WATER IN THE VICINITY OF LACBWR (Report Concentrations in pCi/Liter)

SAMPLE #1 SAMPLE #2 SAMPLE #3 SAMPLE #1 SAMPLE #2 SAMPLE #3 COLLECTION DATE:

11-08-10 11-08-10 11-08-10 12-14-10 12-14-10 12-14-10 SAMPLE LOCATION:

DAM 8 OUTFALL VICTORY DAM 8 OUTFALL VICTORY ISOTOPES/RL

H-3 415+ 91 207+ 88 415+91 207+ 88 415+ 91 415+ 91 Mn-54/1000

<3.92

<3.82

<4.14

<4.16

<4.11

<3.97 Co-60/300

<4.34

<4.26

<4.22

<4.27

<4.34 Zn-65/300

<9.36

<9.31

<9.41

<9.34

<9.30

<9.43 Cs-1 34/30

<4.61

<4.62

<4.73

<4.57

<4.64

<4.52 Cs-1 37/50

<2.64

<4.80

<3.44

<3.51 2.95 + 1.13

<2.54

RL = REPORTING LEVEL 30

TABLE 13 RESULTS OF ANALYSIS OF MISSISSIPPI RIVER SEDIMENT IN THE VICINITY OF LACBWR (Concentration in pCi/Kg)

(Reporting Level = 10 times Control Value)

SAMPLE LOCATION UPSTREAM OUTFALL DOWNSTREAM UPSTREAM OUTFALL DOWNSTREAM COLLECTION DATE 5-25-10 5-25-10 5-25-10 8-11-10 8-11-10 8-11-10 ISOTOPES Cs-134

<4.72

<4.29

<5.96

<5.35

<5.76

<9.23 Cs-137

<4.29 15.6 +/- 1.61 5.18 +/- 1.29

<3.40 56.2 +/- 3.24 117 + 5.83 31

TABLE 14 FISH SAMPLE ACTIVITY IN THE VICINITY OF LACBWR (Report Concentrations in pCi/Kg)

SAMPLE TYPE:

CARP NORTHERN &

CARP PIKE CARP NORTHERN PERCH PIKE COLLECTION DATE:

3-18-10 3-18-10 5-25-10 5-25-10 8-11-10 9-23-10 ISOTOPES/RL*

Mn-54 / 3E4

<4.63

<7.41

<5.27

<5.52

<4.88

<5.16 Co-60/1E4

<5.29

<8.08

<6.32

<6.51

<5.80

<6.06 Zn-65/2E4

<12.3

<19.3

<14.6

<15.1

<12.7

<13.3 Cs-134/ 1E3

<4.99

<8.04

<5.76

<6.20

<5.36

<5.59 Cs-137/2E3

<4.1

<8.31

<5.86

<6.04 9.1 + 2.23

<5.45

RL =REPORTING LEVEL 32

TABLE 14 FISH SAMPLE ACTIVITY IN THE VICINITY OF LACBWR (Report Concentrations in pCi/Kg)

SAMPLE TYPE:

CARP PIKE COLLECTION DATE:

10-13-10 10-13-10 ISOTOPES/RL*

Mn-54/ 3E4

<5.58

<5.62 Co-60/1 E4

<6.83

<6.72 Zn-65/2E4

<15.1

<14.7 Cs-1 34/ 1E3

<6.45

<6.21 Cs-137/2E3 9.84+6.01

<6.43

RL =REPORTING LEVEL 33

ML110670682

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